在线客服: 点击这里给我发消息  新用户使用步骤:会员注册→充值→重新登入→进入资源
标题:Line-scanning Raman imaging spectroscopy for detection of fingerprints.
时间:2020-02-14 23:50:29
DOI:10.1364/ao.51.003701
PMID:22695646
作者:S. Deng; L. Liu; Z. Liu
关键词:classical swine fever virus;marker vaccine;duration of protection
出版源: 《Applied Optics》 ,51 (17)
摘要:Fingerprints are the best form of personal identification for criminal investigation purposes. We present a line-scanning Raman imaging system and use it to detect fingerprints composed of beta-carotene and fish oil on different substrates. Although the line-scanning Raman system has been used to map the distribution of materials such as polystyrene spheres and minerals within geological samples, this is the first time to our knowledge that the method is used in imaging fingerprints. Two Raman peaks of beta-carotene (501.2, 510.3 nm) are detected and the results demonstrate that both peaks can generate excellent images with little difference between them. The system operates at a spectra resolution of about 0.4 nm and can detect beta-carotene signals in petroleum ether solution with the limit of detection of 3.4*10(-9) mol/L. The results show that the line-scanning Raman imaging spectroscopy we have built has a high accuracy and can be used in the detection of latent fingerprints in the future.
大小:801 kb
下载: 点击下载
预览:

浏览器不支持嵌入PDF阅读,打开新页面在线阅读

本页内容由网络收集而来,版权归原创者所有,如有侵权请及时联系